chore: update to Java 21

Author: metacosm

.github/workflows/build.yml

@@ -41,11 +41,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up JDK 17
+      - name: Set up JDK
         uses: actions/setup-java@v4
         with:
           distribution: temurin
-          java-version: 17
+          java-version: 21
           cache: 'maven'
 
       - name: Build with Maven

pom.xml

@@ -36,7 +36,7 @@
     <url>https://github.com/metacosm/quarkus-power</url>
   </scm>
   <properties>
-    <maven.compiler.release>17</maven.compiler.release>
+    <maven.compiler.release>21</maven.compiler.release>
     <maven.compiler.parameters>true</maven.compiler.parameters>
     <maven.compiler.source>${maven.compiler.release}</maven.compiler.source>
     <maven.compiler.target>${maven.compiler.release}</maven.compiler.target>